Update manifests/train/wildrgbd_train_scenes.txt

Update manifests/train/scanetpp_fisheye_train_scenes.txt

Update manifests/train/re10k_train_chunks.txt

Update manifests/validation/scanetpp_fisheye.txt

Update manifests/validation/omnirooms_wide.txt

Update manifests/validation/re10k.txt

Update manifests/train/omnirooms.txt

Delete manifests/validation/scannetpp.txt

Delete manifests/validation/llff.txt

Delete manifests/train/scanetpp_fisheye_val_scenes.txt

Add train and validation manifests